Abstract:
:The pharmacokinetic effect of extracorporeal elimination can be evaluated from the extracorporeal elimination rate constant, from the amount of drug removed, and from extracorporeal clearance. To compare the validity of these approaches in clinical practice, the effect of multiple plasma exchanges on the steady-state kinetics of digoxin (5 patients) and digitoxin (9) was investigated. For digoxin, an unchanged elimination half-life (28 hours) and only slight increase in the total body clearance was found (from 203 to 204 ml/min). There was a more pronounced effect on the kinetics of digitoxin, where the elimination half-life decreased from 4.3 to 3.6 days, and the total body clearance increased from 4.4 to 4.7 ml/min. For digoxin there was no statistically significant difference between observed and predicted steady-state trough plasma concentrations. For digitoxin, the observed trough plasma concentrations at steady-state correlated well (p less than 0.05) with the predicted concentrations calculated from the amount removed or from extracorporeal clearance. The magnitude of the kinetic effect of plasma exchange is overestimated using the extracorporeal elimination rate constant; but the effect of extracorporeal elimination can be adequately evaluated from the amount of drug removed and from extracorporeal clearance. These later approaches can be considered model-independent. Thus, the influence of multiple plasma exchanges on the steady-state kinetics of digoxin and digitoxin will be limited and dosage adjustment is not required, if these drugs are given after - not before - the procedure and hypoalbuminaemia is corrected.
journal_name
Clin Pharmacokinetjournal_title
Clinical pharmacokineticsauthors
Keller F,Kreutz G,Vöhringer HF,Offermann G,Distler Adoi
10.2165/00003088-198510060-00004subject
Has Abstractpub_date
1985-11-01 00:00:00pages
514-23issue
6eissn
0312-5963issn
1179-1926journal_volume
10pub_type
杂志文章abstract::The influence of anaesthesia and surgery on the pharmacokinetics of pethidine (meperidine) was studied in 12 patients. Plasma pethidine concentrations in central venous blood collected during anaesthesia and the ensuing postoperative hours were by gas chromatography with electron capture detection. Postoperative analg...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章
doi:10.2165/00003088-198207020-00004
更新日期:1982-03-01 00:00:00
abstract::The effects of age and gender on the single and multiple dose pharmacokinetics of zileuton have been examined in a phase I nonblinded study. A total of 27 healthy volunteers were evaluable, 9 in the young group (age range 20 to 40 years; 5 males and 4 females) and 18 in the elderly group (range 65 to 81 years; 9 males...
journal_title:Clinical pharmacokinetics
pub_type: 临床试验,杂志文章
doi:10.2165/00003088-199500292-00007
更新日期:1995-01-01 00:00:00
abstract::Ethnic or racial differences in pharmacokinetics and pharmacodynamics have been attributed to the distinctions in the genetic, physiological and pathological factors between ethnic/racial groups. These pharmacokinetic/pharmacodynamic differences are also known to be influenced by several extrinsic factors such as soci...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-200645100-00001
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to (1) determine whether opportunistically collected data can be used to develop physiologically based pharmacokinetic (PBPK) models in pediatric patients; and (2) characterize age-related maturational changes in drug disposition for the renally eliminated and hepatically metaboliz...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s40262-018-00733-1
更新日期:2019-07-01 00:00:00
abstract::The elderly are generally considered to be different from young people in terms of drug response and this applies particularly to quantitative differences. While altered drug handling is a major potential source of difference in responsiveness to drugs, the relative contribution of pharmacokinetics and pharmacodynamic...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-197601040-00003
更新日期:1976-01-01 00:00:00
abstract::18 hypertensive patients with a glomerular filtration rate (GFR) between 3.8 and 113ml/min received guanfacine as single intravenous and multiple oral dose treatment. Mean plasma concentrations of guanfacine on the fifth day or oral treatment ranged from 6.5 to 8.6ng/ml in patients with normal renal function (GFR > 90...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章
doi:10.2165/00003088-198005050-00005
更新日期:1980-09-01 00:00:00
abstract:BACKGROUND:Febuxostat is a novel non-purine selective inhibitor of xanthine oxidase currently being developed for the management of hyperuricemia in patients with gout. OBJECTIVE:To investigate the pharmacokinetics, pharmacodynamics and safety of febuxostat over a range of oral doses in healthy subjects. METHODS:In a...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,随机对照试验
doi:10.2165/00003088-200645080-00005
更新日期:2006-01-01 00:00:00
abstract::Although individualised antihypertensive therapy is widely recommended, prospective methods for optimising treatment are hampered by the paucity of basic information about dose-plasma concentration-response relationships for commonly used drugs. Concentration-effect analysis has been applied to a number of therapeutic...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199426060-00005
更新日期:1994-06-01 00:00:00
abstract::Population pharmacokinetic and pharmacodynamic analysis is an important tool to support optimal treatment in clinical oncology. The population approach is suitable to explain variability between patients and to establish relationships between drug exposure and a relevant pharmacodynamic parameter. This can facilitate ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-200847080-00001
更新日期:2008-01-01 00:00:00
abstract::In the last 15 years the role of opioids in anaesthesia management has undergone dramatic change. Initially used as premedicants, or adjuvants to inhalation anaesthetic agents or as analgesics for postoperative pain relief, narcotics have now evolved into primary anaesthetic agents, primarily because of their ability ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-198611010-00002
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:A prospective pharmacokinetic study was performed in Caucasian patients from an intensive care unit with respiratory support to evaluate the influence of this circumstance on the pharmacokinetic behaviour of levofloxacin. PATIENTS AND METHODS:A standard dosage regimen of 500 mg/day was administered to nine C...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章
doi:10.2165/00003088-200544060-00004
更新日期:2005-01-01 00:00:00
abstract::Histamine H2-receptor antagonists are a unique class of compounds. Pharmacologically they are characterised as a family by their ability to inhibit the secretion of gastric acid, and kinetically they are classified as a family by their similarity in absorption, distribution and elimination. All the H2-receptor antagon...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199120030-00004
更新日期:1991-03-01 00:00:00
abstract::In the treatment of patients with Parkinson's disease, apomorphine has an established place as a back-up therapy if other antiparkinsonian drugs, such as levodopa and oral dopamine agonists, have not controlled the existing response fluctuations. Apomorphine is a synthetic derivative of morphine, with a totally distin...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199937030-00004
更新日期:1999-09-01 00:00:00
abstract::In the drug therapy of cardiac emergencies, it is necessary to rapidly achieve therapeutic drug concentrations and adjust drug dose as the patient's clinical status changes. Cardiac dysfunction is often present and may alter drug pharmacokinetics. Circulatory failure causes sympathetically mediated vasoconstriction in...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-198409040-00001
更新日期:1984-07-01 00:00:00
abstract::Antipyrine pharmacokinetics were studied in 6 healthy women before and 2, 8 and 12 weeks after administering the injectable progestagen (progestin), norethisterone (norethindrone) enanthate 200mg intramuscularly. Additionally, antipyrine kinetics in 5 women who had previously used the injectable contraceptive for 8 to...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章
doi:10.2165/00003088-198611020-00007
更新日期:1986-03-01 00:00:00
abstract::Despite contributing significantly to the burden of global disease, the translation of new treatment strategies for diseases of the central nervous system (CNS) from animals to humans remains challenging, with a high attrition rate in the development of CNS drugs. The failure of clinical trials for CNS therapies can b...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.1007/s40262-018-0632-y
更新日期:2018-09-01 00:00:00
abstract::Cyclosporin is a powerful immunosuppressive drug used in transplantation medicine and to treat autoimmune diseases. It is a lipophilic molecule, with its bioavailability dependent on food, bile and other interacting factors. Cyclosporin is extensively metabolised in the liver by the cytochrome P450 3A system, which is...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199324060-00004
更新日期:1993-06-01 00:00:00
abstract::In the original publication, Page 3, Sect. 4.3, the first sentence was incorrectly published. ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,已发布勘误
doi:10.1007/s40262-018-0633-x
更新日期:2018-05-01 00:00:00
abstract::With the use of combination chemotherapy as well as a wide range of symptomatic therapies (e.g. analgesics and antiemetics) for the treatment of patients with cancer, the field of oncology practises polypharmacy to an extreme degree. The risk for a drug interaction under these conditions is high, and the pharmacologic...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-198611030-00004
更新日期:1986-05-01 00:00:00
abstract::The classic approach to describe the pharmacological response to a drug is to analyse its concentration-effect relationship, using a variety of possible models such as maximum effect (Emax) models or sigmoid Emax models. The aim of this review is to discuss an alternative way of describing the pharmacological effect i...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199936050-00005
更新日期:1999-05-01 00:00:00
abstract::The present article should be read in conjunction with the original review published in the Journal in 1983. There is no new information of major significance about the pharmacokinetics of levonorgestrel, norethisterone (norethindrone) or ethinylestradiol, although it has been shown that the concentrations of these ho...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199120010-00002
更新日期:1991-01-01 00:00:00
abstract::Most of the currently available psychotropic drugs form 1 or more active metabolites during in vivo biotransformation in humans and/or animals. In some cases these metabolites are rapidly conjugated and excreted, but in others they attain blood and/or brain concentrations within the same range as, or even higher than,...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199018060-00002
更新日期:1990-06-01 00:00:00
abstract::The effects of diabetes mellitus on the pharmacokinetics and pharmacodynamics of drugs have been well described in experimental animal models; however, only minimal data exist for humans and the current knowledge regarding the effects of diabetes on these properties remains unclear. Nevertheless, it has been observed ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/11631900-000000000-00000
更新日期:2012-08-01 00:00:00
abstract::Interpatient pharmacokinetic variability normally observed in adults is often of even greater magnitude in paediatric patients because of age-related maturation of physiological processes responsible for drug disposition. Several antineoplastic agents have shown age-related changes, including alterations in volume of ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-198712030-00002
更新日期:1987-03-01 00:00:00
abstract::There are many pathological changes in patients with cystic fibrosis (CF) which can lead to alterations in drug disposition. Although, in patients with CF, the extent of drug absorption varies widely and the rate of absorption is slower, bioavailability is not altered. Plasma protein binding for the majority of drugs ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199835040-00004
更新日期:1998-10-01 00:00:00
abstract:OBJECTIVE:To determine the multiple dose pharmacokinetics of a new extended release (ER) capsule formulation of tolterodine, compared with the existing immediate release (IR) tablet, in healthy volunteers. DESIGN:Nonblind, randomised, 2-way crossover trial. PARTICIPANTS:19 healthy volunteers (7 females, 12 males), me...
journal_title:Clinical pharmacokinetics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.2165/00003088-200140030-00006
更新日期:2001-01-01 00:00:00
abstract::Nintedanib is an oral, small-molecule tyrosine kinase inhibitor approved for the treatment of idiopathic pulmonary fibrosis and patients with advanced non-small cell cancer of adenocarcinoma tumour histology. Nintedanib competitively binds to the kinase domains of vascular endothelial growth factor (VEGF), platelet-de...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.1007/s40262-019-00766-0
更新日期:2019-09-01 00:00:00
abstract::The combination of artemether and lumefantrine (benflumetol) is a new and very well tolerated oral antimalarial drug effective even against multidrug-resistant falciparum malaria. The artemether component is absorbed rapidly and biotransformed to dihydroartemisinin, and both are eliminated with terminal half-lives of ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-199937020-00002
更新日期:1999-08-01 00:00:00
abstract::Necitumumab is a second-generation, recombinant, human immunoglobulin G1, epidermal growth factor (EGFR) receptor antibody that specifically blocks the ligand binding site of EGFR. Necitumumab potentially acts by blocking ligand epidermal growth factor (EGF) binding-mediated activation of the EGFR signaling pathway, i...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s40262-016-0452-x
更新日期:2017-05-01 00:00:00
abstract::Few of the articles published on antibiotics and pregnancy are concerned with pharmacokinetics. It is particularly difficult to evaluate possible alterations in pharmacokinetic parameters that may be due to pregnancy. Most data available have been obtained in connection with abortion or delivery. Such data may not be ...
journal_title:Clinical pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2165/00003088-197904040-00003
更新日期:1979-07-01 00:00:00